the feelers yes there grand the micrometer i dont think so it reads 0.00 there used in engineers shops for basic measurements , my 1 reads o.000 ( micron ) and is used for the automotive industry where its measured in thousands you need something like this to get tru readings ( scroll down and read the info ) http://www.ebay.ie/itm/RDGTOOLS-0-25MM-0-1-DIGITAL-MICROMETER-METRIC-IMPERIAL-MEASURING-TOOLS-/371107866893?hash=item5667c0a90d